Sliver-balling machine



March 1931- G. FRASER ET AL SLIVER BALLING momma Filed June 5, I 19:50

Patented Mar. 10, 1931 UNITED STATES PATENT OFFICE GORDON FRASER, NORMAN FRASER, AND JOHN FRASER, OF ARBROATH, SCOTLAND SLIVER-BALLING lvmoi inin Application filed June 1930, Serial No. 459,406, and in Great Britain June i7, 929.

This invention relates to machines contrived to form rolls or balls of sliver or the like upon a sectional arbor or mandrel, being concerned more particularly with machines 5 for making and ejecting rolls ofsliver delivered continuously from a card or drawing frame or other machine which delivers fibre in sliver or ribbon form.

For convenience we shall describe in detail a machine adapted for handling the sliver from a card or drawing frame.

, A machine constructed in accordance with the invention comprises a pair of axially spaced discs, revoluble arbors extending axially of said discs and normally having their ends contiguous, said arbors being retractible clear of the space between the discs, and a driven endless band (or chain) engageable with said arbors and serving, when sliver is delivered to the arbors, to build a sliver roll thereupon and, finally, when the arbors are retracted, to eject the roll from between the discs.

Automatic means may be provided for separating the arbors and returning them to end to end position, as described in the specification of our prior application Serial No.

394,107 filed 20th September, 1929." Manually operable means may also be provided for effecting ejection of a partially formed roll.

In the accompanying drawing Fig. 1 1s a more or less diagrammatic side elevation of a sliver balling machine constructed in accordance with the invention and Fig. 2 a fragmentary detail View showing a modification. The machine shown comprises a pair of axially spaced discs as 1 and extending axially thereof a pair of revoluble arbors as 2 which are normally contiguous but which are retractible clear of the space between the discs 1.

3 denotes an endless band engageable with the arbors 2 and serving, when sliver 4 is delivered to the arbors, to build a sliver roll 4:

thereupon and, finally, when the arbors 2 are retracted, to eject the roll from between the discs 1. 7

Each disc 1 is mounted for rotation on a horizontal axis on a hollow ournal 5 carried by a gable frame 6 disposed on the correthe band 3. v

spon ding side of the machine. The arbors 2, which extend, normally, through the journals 5, are revolubly mounted on the upper ends of a pair of levers 7 of which the lower ends are pivoted at 8 transversely of the axis of the discs, the arrangement being such that the arbors 2.are retracted clear of the space defined between the discs 1 when the levers 7 are rocked on their pivots 8 to separate the upper ends of said levers. Disposed adjacent to and around the periphery of the discs are three pulleys 9, 10 and 11, two of which, namely 9 and 10, have fixed axes and the other 11 of which 'constitutes'a jockey pulley and has a movableaxis. I The pulleys 911 are wrapped by the endless band 3 of which the flight extending between the pulleys 9, 10 is movable within the space defined between the discs 1, so as frictionally to engage the arbors 2, or sliver wound on the arbors, under the control of thejockey pulley 11. The jockey pulley 11 is conveniently carried on one arm 12 of a bell-crank lever 12, 13 pivoted at 14 and having adj ustably mounted on its other arm 13 a counterweight 16 serving to load the lever in the direction to tension The pulley 10 constitutesia driver. A slight clearanceis left'between the adj acent ends'of the arbors 2 when in. end to end relation. a V In operation, the sliver 4 from card d'olivery rolls indicated at 17, 18 is inserted between the arbors 2, andthe bell-crank lever "12, 13 released, whereby the band 8 engages u and accelerates the arbors 2 and frictionally engages the sliver roll being built thereupon. 'lVhen the sliver roll has attained a predetermined. diameter, the arbors 2 are retracted,

whereupon the stretchedband 3 effects .ejec- J tion of-the roll from between the discs 1, the arbors 2 being thereafter restored to position ready for a subsequent roll-forming operation. WVhen necessary, in orderto eject a 'partially formed roll, the bell-crank leveri12,

13 is manually operated to ease .the drivingband pressure on the roll and arbors. The arbors are then retracted; Then by reverse movement of the'lever the driving-band is again stretched so as to cause ejection of the roll, the arbors being then closed on the sliver to build a sliver roll thereupon, and, when to start another roll. said arbors are retracted, to eject the roll from It will be understood that, during the roll between said discs.

building operation, the band 3 supplies the In testimony whereof we have signed our requisite pressure to compact the roll. Ii names to this specification. necessary, each of the pulleys 9-11 may be GORDON FRASER. divided as shown in Fig. 2 and the band 3 7 lilORMAN FRASER.

may be attached to a positively driven chain JOHN FRASER.

19 engaged by a sprocket wheel 20 intermediate the pulley halves. p

The discs 1 may be stationary when the roll starts building but will commence rotation as the roll increases in diameter.

15 l. A sliver balling machine comprising a 30 pair of axially spaced discs, revoluble arbors extending axially of said discs and normally having their ends contiguous, said arbors beretractib'le clear of the space between said discs, and a driven endless member engageas able with said arbors and serving, when sliver is delivered to said arbors, to build a sliver roll thereupon, and, when said arbors are retracted, to eject the roll from between said discs. p

2. A sliver balling machine comprising a pair of axially spaced discs, a pair of levers pivoted at their lower ends on axes transverse to the axis of said discs, arbors revolubly mounted on the upper ends of said levers, said arbors extendingaxially of saiddiscs-and normally having their ends contiguous, said arbors being retractible clear of the space between said discs on rocking said levers apart, I

and a driven end-less member engageable with said 'arbors and serving, when sliver is delivered to said a-rbors, to build a sliver roll "thereupon, and, when said a rbors are retracted, to eject the roll from between said discs. 3. A sliver balling machine comprising a pair of axially spaced discs, revo'lu'ble arbors extending axially of said discs and normally having their-"ends contiguous, a set of pulleys I dis; osed adjacent to and aroundthe periphcry of said discs, two of said pulleys having 7 'lixed axes and a third pulley having a mov- 'a'bl'e-a'xis, and a driven endless band wrapping said pul'leys, said band engaigeable with'said a'rbors and serving, when sliver is delivered to saidarboi's,to'build a sliver roll thereupon, and, when said a rbors are retracted, to eject the roll "from between "said discs.

411A sliver balling machine comprising a pair-of axially spaced discs, revoluble arbors extending axially of said discs and normally L0 having tlfii'i ends contiguous, a set of three pulleys disposed adjacent to and around the periphery of said discs, two of said pulleys we having fixed axes,a lever one arm of which carries theth'ii'd pulley, the 'othe'rarni oi said "b 'l' ld 1 dl l l" lei e1 eing aqus. iy 0a ec, anc a criven endless band wrapping said pulleys, said band engageabl'e with said =arbors and serving, when sliver is delivered to said arbors, 

